Main Pcb Removal - Welch Allyn Spot Vital Signs Service Manual

Welch Allyn, Inc. Spot Vital Signs Service Manual
Revision A
1. Lay unit face down on the test bench
2. Remove the 4 Phillips head screws holding the battery cover/handle to the unit using T112918
with the #4 Phillips bit (T112919).
3. Lift handle/cover and aside.
4. Lift battery from housing and disconnect the Molex connector.
5. Remove 3 #10 Torx Screws from the temperature pod using T112917 with the #10 Torx bit
(T114030).
6. Roll temperature pod toward top of the unit and place on test bench.
7. Unplug the flex cable from the temperature connector PCB and aside the temperature pod.
8. Remove the 4 Phillips head screws using T112918 with the #4 Phillips bit (T112919).
9. If equipped with SpO2, remove and aside the SpO2 cable clip.
10. Remove the tubing from the front housing and aside housing.
11. Gently lift the LCD module from its post.
12. Roll the LCD to the left and set on the bench beside the Spot unit.
13. Remove the flex cable from the LCD and aside the display.
14. Disconnect the power cable from the main PCB by pushing down on the tab and pulling toward
the bottom of the unit.
15. Remove the pneumatic tubing from the transducer on the PCB.
16. Remove the battery/Valve cable connector from the bottom of the PCB.
17. Remove the 4 #10 Torx screws from the PCB using T112917 with the #10 Torx bit.
18. Lift Main PCB from housing and aside.
19. If unit has SpO2, remove the SpO2 Module from defective Main PCB and add to new Main PCB.

4.6 Main PCB Removal

Reassemble in reverse order
End of Section 4.6
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